Cushioned vehicle tire



Feb; 2s, 1924.-

l H. C. EGERTON cusHIoNED VEHICLE uns; src

Fiied Aug.v 5i, 1918 Patented Feb. 26, 1,924.

UNiTEn STATES HENRY c. EGFEETON, or RIDGEwooD, NEW JERSEY.v

cUsHroNED VEHICLE TIEE, Ero.

l `Application med Augustv 31, i918. semi No. 252,170;

, To all whom t may concern:

- Be it known that I, HENRY C. EGEETON, a citizen of the United States, and. resident of Ridgewood, county of Bergen, vState of New Jersey, have made va certain newand useful Invention Relating to Cushioned Vehicle Tires,Etc., of whichY the following is a-speciiication, takenl in connection with the accompanying drawing, which forms part of thesame. n f,

This invention relates especially to vul# canized rubber cushioned vehicle tires and so forth in which jthe portions of the rubber tire cooperating with the rim portion of the wheel are secured to and strengthened and reenforced` by a fabric connecting member impregnated with or carrying-curedk phenolick condensation cementing' material. Where the tire of the solid or pneumatic type engages ya lateral rim. flange or'fretaining member, a rim bead protector layerk or portion of such impregnatedfabric is preferably provided and secured to this clincher or straight side rim bead portion of the tire. It is, for some purposes, desirable tok mould a solid cushioned type vehicle tire directly into ,f the metal rim with whichit is used, and if desired the `gripping engagement or connectiony between the baseof the vulcanized rubber-tire and the fabric connecting' membermay be increased by giving this connectying member ay corrugated or increased area engaging surfacein any suitable way, as for instance, by incorporating cords, ropes or other disconnected projections therein so that they arb strongly secured thereto.- `In order to promote the union between the connector member and the tire it is,in` many cases, desirable to provide auniting member or strip tu. y

of rubberized canvas or other fabric to serveafsomewhat diagrammatic way various illus'- trative embodiments of the 'invention-- j Fig. l is a side .view of a 'cushioned o solid type tire and rim.

Fig.V 2 is an enlarged ytransverse section thereof taken substantially along the line 2-2 of Fig. 1 and Fig. 3 is a section through another form of cushion or buffer member.

As shown in Figs. 1 and 2 the rim 2'may be of heavy sheet metal construction and'may of course be conveniently formed by welding up and shaping sheet steel of .the `usual character, rim flanges which mayk be of the clincher type being, if desired, provided at the sides as indicated by the numeral. 3. .The vulcanized rubber tire l may be of any suitable shape and construction and may be formed of rubber composition of the desired character for the particularservice for which it is intended. In order to facilitate and strengthenthe' connection between the ltire and rim a con-L necting member-of canvas or other fabric im-V pregnated .with or carrying phenolic conden-y sation cementing material such-as bakelite, condensite or redmanol varnish, for instance, may be interposed .between the two and several strips or layers ofV heavy impregnated canvas such as 6, 7 may be wound on or tightly applied tol the yrim before the rubcords or small Woven cables or ropes 17 may be arranged at intervals along the connectori member preferably afterv being coated or impregnated with vsuch phenolic condensation cementing material so as to ensure their strong and effective union with the other layers of theconnecting member when thisV cementing material is curedby the desired Vheat treatment. ,As indicated in Fig 2 four s uch gripping cords are shown between-the tire .and connectingmember and ythesecordsf loo may be separate,annularcordspr maybe the;

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of this character is shown as constituting the upper surface of the connecting member in Fig. 2 and as being folded or brought around the projecting gripping cords which" is preferably done to some extent at least before the rubbercomposition of the tire is moulded and pressed'into place.l This uniting layer or member may be a single layer of heavy canvas preferably of rather open mesh which has been given a frictioned rubber coating on one side While the vrelatively uncoated Aside is pressed into engagement With the layers or portions of the connecting member beneath, which are suliiciently impregnated or supplied. with phenolic condensation cementing material in relatively dried form so that under heat treatment this cementing material melts or flows into and engagesthe uniting layer suiliciently to secure'ly unite it With the other layers of the connecting member.

If the connecting member has been built up on the rim in the case oi such a cushioned tire and preferably dried, and in some cases at least partially cured by heat treatment thereon of such'character as is suitable for the particular phenolic condensation cementing material employed, the rubber composition for the tire, Which may be more or less previously formed yof shaped strips or-pieces, maybe put in place and the Whole pressed in a forming and vulcani/zing mould Where it can be put under pressure and'brought up tothe desired 'heat ol 250o to 320C F.v

more or less for a sufiicient time to vulcanize the Vrubber `While it is strongly forced into engagement With the coimecting'member to which it is vulcanized, at the same time that the phenolic condensation cemented material is cured and solidilied by this heat treatment. In case securing Wires such as d are used in the body of the tire, they may with advantage, be arranged on or outside of suitable supporting strips or members 5 comprising one `or more layers of canvas or other fabric such as cloth or tough preferably open textured paper or the like which has been impregnated With balrelite varnish or other suitable phenolic condensation cementing material and substantially'dried before being incorporated in the tire during the moulding thereof. The heat and pressure cure the cementing material in ythese supporting strips and also more or lessvulcanize the rubber thereto, since the phenol-ic condensation cementing material seems `to be some-y what more fluid than rubber under the lower vulcanizing heats so as to be somewhat displaced by the rubber in the engaging portionsV of the fabric. This action may also be used to directly and quite strongly unite the vulcanized rubber of the tire to the imregnated connecting member or canvas ayers Where no separate rubberized uniting member is interposed between them. rlhe rim beads-or lateral portions of cushioned or other vehicle tire engaging the sides of the Wheel rim or other lateral retaining devices may With advantage be strengthened and supported by one or more layers orn Such canvas or other fabric carrying or impregnated Vvvith phenolic condensation cementing material. As shown in Fig. 2 the rim bead 19 interlocking With the clincher rim ilange 3 may have connected thereto on its outer su 1race a protector layer or portion 18 Which may, for instance, be one or .nore of the foundation layers 6, 7 of the connector member; and the uniting member or layer l5 is preferably as indicated also more or less carried up around this protector layer or portion Which strengthens this part of the tire and promotes its'union to the protector layer.

Fig. 8 shows another -form of cushion or buller member, a series of Which may be used on vehicle tires or the separate pad or tread member type or which may be used for cushion or butler members in other connections. A rim iiember or support ll of sheet metal may be formed With flanges l0` of the clinclier type if desired and a connecting member is preferably interposed between the rubber and the base or inside of this rim or support, tivo layers l2, 13 being shown for this purpose. This connector member may be of heavy canvas preferably thoroughly impregnated ith phenolic condensation cementing material and put in place in the supporting member before the rubber composition 9 is moulded thereto. It desired, rim beads of the clincher type 19 may be formed on the rubber buer member Which interlock With the clincher rim flanges to hold the rubber securely in place, in addition to the action of the connecting member which also contributes to hold the base of the rubber cushion member securely Within its support prevent localized creeping or displacement. Si course, in the event that any movement occurs between the'connecting member and rim or support in any of these described constructions, the connecting member is much less injured or Worn because vof the increased strength and Wearing properties secured by the incorporated cured phenolic condensation cementing material Which may be present in the canvas or other fabric to the extent of 30v to 60% byvveight more or less.

This invention has been described `in connection with a number of illustrative embodiments, forms, proportions, elements, parts, shapes, materials, compositions, methods of preparation, `production and use, tothe details of which disclosure the invention is not of course to be limited, since what is claimed as new and what is desired to be secured by Letters Patentis set forth Vin the appended claims. n

l. In rubber vehicle tires, a metal rim formed with integral f lateral retaining flanges, a connecting member Within said Vrim and in close contact therewith and comprising a number of layers of heavy canvas impregnated with and carrying cured phenolic condensation cementing material, a series of gripping surface increasing projecting cords carrying phenolic condensation cementing material securely uniting themto said connecting member, said connecting member comprising a uniting layer lcemented to said cords andto the other layers of said connecting member by such phenolic condensation cementing material and provided with a previously applied frictioned rubber Vcoating Von e its other surface, a solid type 'cushioned tire of vulcanized rubber composition moulded into said rim and vulcanized to the uniting layer of said connecting member and securely interlocked With said gripping.projections, said tire being orovidedwith rim Wi/l" baving attached protector layers of fabric carrying cured phenolic condensation cementing material. Y

2. In rubber vehicle tires, a metal rim formed with integral lateral retaining flanges, a connecting member Within said rim and in close Contact therewith and comprising a number of layers of heavy canvas impregnated With and carrying cured phenolic condensation cementing material, a series of gripping surface increasing projections carrying phenolic condensation cementing material, said connecting member'comprising a uniting layer cemented to said projections and to the other portions of said connecting member by such phenolic condensation cementing material, a solid type cushioned tire of vulcanized rubber composition moulded into said rim and vulcanized to the vuniting layer of said connecting member and securely interloclred With said gripping projections.

3. In rubber vehicle tires, `a connecting member adaptedto fit Within and in close contact with a Wheel rim and comprising fabric carrying cured phenolic condensation cementing material, a series of gripping sur` c face increasing projections carrying phenolic condensation cementing material securely uniting them to said connectingmember, said connecting member comprising a fabric uniting layer cemented to said projections and to the other portions of said connecting member by such phenolic condensation cementing material, and a solid type tire of vulcanized rubber composition vulcanized to said connec-ting member and securely interlocked with said gripping projections.

4. In rubber vehicle tires, a connecting member adapted to it Within a Wheel rim and comprising fabric carrying cured phenolic condensation cementing material, a series of gripping surface increasing projections carrying phenolic condensation cementing material securely uniting them to said connecting member, and a solid type tire of vulcanized rubber composition vulcanized to said connecting member.

5. In vehicle tires, a metallic support, a fabric connecting member engaging said support and impregnated with cured phenolic condensation cementing material, a vulcanized rubber tire tread cushioning member vulcanized to said connecting member and secured in said support, said connecting member being formed with projecting gripping cords secured to said connecting member and .interlocking With said cushioning member.

6. In vehicle tires, a fabric connecting member impregnated with cured phenolic condensation cementing material, a vulcanized rubber tire tread cushioning member vulcanized to said connecting member, said connecting member being formed with projecting gripping portions.L Y

In cushioning devices, a metallic support, a fabric connecting member engaging said support and carrying cured phenolic condensation cementing material, Va vulcanized rubber cushioning member vulcanized to said connecting member and secured in said support, said connecting member being formed With projecting gripping portions interlocking With said cushioning member.

8. In cushioning devices, Va fabric connectsation cementing material, a vulcanized rubber cushioning member vulcanized to said member.

HENRY C. EGERTON.

soA

,ing member carrying cured phenolic conden- 

